Some districts are over-programmed in specific categories for the four-year period. However, SAFETEA-LU funds and TxDOT's forecasted revenues indicate adequate funding amounts will be made available to construct projects over that same period.

The shifting of projects between fiscal years allows for the flexibility essential to efficient program management. The maximum transfer of funding among categories and programs will be accomplished to ensure TxDOT does not lose federal apportionments and obligation authority.

Should federal apportionments be reduced by obligation authority, state and local dollars that would no longer be required to match federal funds will allow TxDOT to advance projects with state funds, seek advanced construction funds, or defer projects until federal obligation authority is available. Any source of funding that is reduced or eliminated will be represented in revisions to the TIP and STIP funding summaries, and the TIP/STIP project listing to ensure fiscal constraint.